铜 7365.0/7390.0 b 80.0/90.0 b
锡 8000/8200 c 60.0/50.0 c
铅 1030.0/1040.0 c 16.0/14.0 c
锌 3170.0/3190.0 c 8.0/4.0 c
铝 2500.0/2510.0 c 46.5/45.5 c
镍 23300/23600 b 2350/ b
锡 8000/8200 c 60.0/50.0 c
铅 1030.0/1040.0 c 16.0/14.0 c
锌 3170.0/3190.0 c 8.0/4.0 c
铝 2500.0/2510.0 c 46.5/45.5 c
镍 23300/23600 b 2350/ b